fsadm — utility to resize or check filesystem on a device


fsadm [options] check device

fsadm [options] resize device [new_size]


fsadm utility checks or resizes the filesystem on a device. It tries to use the same API for ext2, ext3, ext4, ReiserFS and XFS filesystem.



Unmount ext2/ext3/ext4 filesystem before doing resize.


Bypass some sanity checks.


Display the help text.


Print commands without running them.


Be more verbose.


Answer "yes" at any prompts.


Resize dm-crypt mapping together with filesystem detected on the device. The dm-crypt device must be recognizable by cryptsetup(8).

Absolute number of filesystem blocks to be in the filesystem, or an absolute size using a suffix (in powers of 1024). If new_size is not supplied, the whole device is used.


On successful completion, the status code is 0. A status code of 2 indicates the operation was interrupted by the user. A status code of 3 indicates the requested check operation could not be performed because the filesystem is mounted and does not support an online fsck(8). A status code of 1 is used for other failures.


Resize the filesystem on logical volume /dev/vg/test to 1000 megabytes. If /dev/vg/test contains ext2/ext3/ext4 filesystem it will be unmounted prior the resize. All [y/n] questions will be answered 'y'.

fsadm -e -y resize /dev/vg/test 1000M

Environment Variables


The temporary directory name for mount points. Defaults to "/tmp".


The device directory name. Defaults to "/dev" and must be an absolute path.

See Also

lvm(8), lvresize(8), lvm.conf(5), fsck(8), tune2fs(8), resize2fs(8), reiserfstune(8), resize_reiserfs(8), xfs_info(8), xfs_growfs(8), xfs_check(8), cryptsetup(8)

Referenced By

fsadm_selinux(8), lvextend(8), lvreduce(8), lvresize(8).

LVM TOOLS 2.03.06(2) (2019-10-23) Red Hat, Inc